Milking-machine



A. CLOSE.

MILKING MAQHINE. APPLICATION FILEDsJAN. 9, |919.

, .l lber ms@ nveutoz 'tnvrrnn srarns rarnr onirica ALBERT CLOSE, OF PLAIN FIELD, NEWT JERSEY.

MILKIpNG-MACHINE.

is comparatively simple in construction, and

will lend itself to sterilization to prevent the accumulation of bacteria thereon in consequent transmission with the milk.

Another object of this invention is to provide `a. milking machine as specified, whichy comprises a pump or suction mechanism including a base block having lateral foot flanges thereon adapted to receive the feet of the operator to hold the suction apparatus securely in position whichblock is provided with a plurality of ways having connnunication with the `Suction pump and with a cow teat engaging member and 4also opening out through the edges or sides of the base block, said opened out ends being normally closed by removable plugs, so that for sterilizing purposes, the plugs may be removed to allow the boiling water or sterilizing liquid to pass freely and entirely into the suction appara-tus. l

@ther objects of the invention will appear in the following detailed description taken in connection with the accompanying drawing, forming a part of this specification and in which drawings:

Figu-re 1 is a view of the suction or pump mechanism showing p-arts thereof inside elevation and parts in section.

Fig. 2 is a fragmentary edge elevation of the milking machine.

Referring more particularly to the drawings, 1 generically indicates the pump or suction mechanism of the milking machine, which `comprises the base slot or body 2 being substantially in shape and provided with laterally extending foot flanges or rests 3 upon its end at their lower edges which are adapted to receive the sole portions of the feet of an operator to securely holdthe feet in place as shown n Fig. 1 of the drawings. The body block 2 is provided'with a pair of vertically extending ways near its opposite edge, each of which comprise various portions of varying diameters. The upper portion of these vertical ways are relatively Specification of Letters latent.

Patented Dec. 2, 1919.

large in diameter and are partially threaded for detachable connection with the cylinders 4 and V5 in which the pistons 6 are reciprocably mounted. The piston rods 7 which are connected to the pistons 6 project upwardly through the removable cap 8 which forms closure for the upper ends of the cylinders 4 :and 5. Suitable hand grips 9 are formed upon the upper ends of the piston rods 7 to permit a firm grip thereon by the lhand of the operator. The removable plugs 10Vare inserted in the lower ends of these vertical ways` forming closures therefor. A pipe 11 extends transversely across one side of the body 2 near the bottom thereof and has communication with the vertical way directly above the lower closure plugs 10. An elbow pipe 12 communicated with the pipe 11 intermediate its ends land this pipe has a connecting plug 13 formed upon Vits outer upper end. 'A plurality of relatively small metal tubes 14 are connected to thecouplings 13 and they have hose or flexible conduits 15 connected to their outer free ends and these conduits may be of any desired-length, they providing coupling forcoimecting the tubesl to the pipe 14. The `tubes 16 are preferably made of sterling; silver and they have their endsrounded as shown at 17 to prevent `irritation when they are inserted into the teat of the -cow as shown in Fig. 1.

Upon the upward stroke of the piston 6 in the cylinder 4, a suction is created through the tubes 16. down through the pipes 12 and lland into the vertical way in the body .block which has communication with the cylinder 4 displacing Vthe ball or checking valve 18 and allowing the milk to be drawn upwardly into the portion of the vertical way above the check valve and also into the cylinder 4. Upon the downward or force movement of the piston 6 in the way 4, the milk which has been drawn into the cylinder 4 b y the suction stroke of the piston is forced therefrom through a transverse way 19 through the check valve structure 20 into the relatively shallow vertical way 21 from which it passes into the transverse pipe 22 and from this pipe outwardly through the discharge nozzle 23V into a bucket 0r other suitable container notV shown. Upon the down or force stroke of the piston 6 the check valve 18 will be closed, preventing the passage of the milk back into the pipe l1 and upon the suction stroke of the piston 6 in the cylinder 4 the check valve 20 will be tirely eliminated,

closed to prevent the drawing of milk from the pipe 21 back into the transverse ivay 19. The transverse Way 19 opens out through one end of the body block 2 and a. removable closure plug 2d is inserted in the Vouter end, to prevent the passage of milk out therethrough ivliile a removable closure plug` 25 is inserted in the outer end `of the way 21 which Way opens out into the top of the body block. These removable plugs 10', Qilaiid 25 are adapted for removal when sterilizing the pumping' mechanism ot therinilking machine so as to allen7 the sterilizing liquid to pass freely through all parts of the pumping structure. 'The body 2 isalso provided With a second set of transversey and vertical ways,corresponding to the Ways 19 and 21 which have communication with the cylinder 5 so that the operation above set forth will be repeated during the niovement'of the piston 6 Within the cylinder 5 and these pistons 6, in `the cylindeis l and v5 are4 adapted to alternate operation, thereby causing a constant suction through thepipe v12 and nipples ortubes 16 and consequently resultino` ina constant iioiv of milk from the coiv s ridder into a receptacle Vuntil the quantity of milk has 'been removed lend itself readily to sterilization andvalso one wherein the transmission oiLl any bacteria from the covv teats or ridder or the hands of the operator to the milk is en-V Changes in details may be made Without departing from the spirit of this invention, but;

I claim: y

1. In a milking'machine, the combination, of a suction pump including a base block, a pair of parallel cylinders, carried by said block, pistons reciprocably mounted Within said cylinders, milk inlet Ways in said body block, having communication With said cylinders, whereby Vmilk will be drawn into the body block and cylinders, upon the suc- A tion creating movement ot said pistons, outlet Ways in the block communicating' With said pistons and Vcheck valves within said Ways-'to control the passagezo' milk therethrough, said Ways opening` out at outer sur@V Vfaces or" said bodyV block, and removable plugs 'forming closures for the/outer ends of saidV ways to permit sterilizing of the body block.

2. ln a milking machine, the combination, of a suction pump including a base block, a pair of parallel cylindersV carried by Vsaid block, pistons reciprocably mounted Within said cylinders, milk inlet Ways Vin said body block having communication with said cylinders ivhereby milkvfill be.V drawn into the body block ind cylindersupon the suction creating movement: ot said pistons, outlet ways in the block communicating With said pistons .and check valves within saidV Ways to control the passage Vof milk therethrough. said ways opening out at outer surfaces of saidbody block, and removable plugs `forniing closures for Athe outer ends of said Ways to permit steriliziiig of the body block, a pair of laterally extending ootreeeiiing fling-es s Vformed upon the edges of said body block Vat its base.

3. Ina milking machine, the combination, oit .a suction pump including` a body block Y Vprovided .with a pair of vertically extending Ways positioned'one near each end of the body block, cylinders connected to the bodyY block and extending into the lippe-rends of said ways, reciprocable pistons in Vsaid cylinder, a liquid inlet pipe having coin-A miuiication with said vertical ivays near their loiver ends, an outlet or discharge pipe, said body blockprovidedrivith outlet ways having communication with said discharge Y pipe and said body block provided ivith transversely extending Ways communicating with said outlet Ways and said vertical ivays, said vertical ways, outlet ivays, and translverse Ways opening Vout at one end in the outer surfaces of the body block and4 closure )liiOs mounted in said outer ends of said 'Y Ways.

ALBERT CLOSE. y Vitness:

GrnoiioiiY T. lVoGLoM.A 

